docs: def _process_article_phene_row(self, row):
          """
          Linking articles to species-specific phenes.
  
          :param row:
          :return:
          """
          # article_id, phene_id, added_by
          # look up the article in the hashmap
          phenotype_id = self.id_hash['phene'].get(row['phene_id'])
          article_id = self.id_hash['article'].get(row['article_id'])
  
          omia_id = self._get_omia_id_from_phene_id(phenotype_id)
          if self.test_mode or omia_id not in self.test_ids['disease'] \
                  or phenotype_id is None or article_id is None:
              return
  
          # make a triple, where the article is about the phenotype
          self.graph.addTriple(
              article_id,
              self.globaltt['is_about'], phenotype_id)
  
          return